1. Observe whiteness. The requirements of the whiteness made of different materials are different. Among them, the requirements for bright glass are not significant.
2. Observe bubbles. Allowing a certain width and length of air bubbles, but the number cannot be too much, especially the bubbles that can be pierced with steel needles, let alone exist. It is best not to buy this glass.
3. Observe transparency. Different capacity glass requirements are also different from transparency. If the transparency is more than 1/3 of the cup body, it is recommended not to buy this type of glass.
4. Look at cut printing. The so-called shear printing refers to stripes or cricket-shaped shear marks. If its length is greater than 20-25mm, or width is greater than 2.0, and more than one, it exceeds the bottom of the cup, or the white hair is shiny. It is recommended not to buy it.
5. Observe the model printing. The cup body is implicitly seal, and you should not buy it obviously.
6. Observe the cup body sucking. This is the phenomenon of unevenness in the cup body. If you find it obviously, don’t buy it.
7. Observe the rubbing and scratch. Rubbing the friction of the diameter of the glass and the glass, leave a trace of losing luster in the cup body. Don’t buy it on.
Post time: Mar-22-2023